Means for operating centrifugal machines.



PATENTED FEB. 7, 1905.

W. L. DOLIER.

MEANS FOR OPERATING GBNTRIFUGAL MACHINES.

APPLICATION FILED AUG.19, 1903.

2 BHEETS-HBET 1.

Witne $368:

No. 782,206. PATENTED FEB. 7, 1905.

W. L. DOLIER. MEANS FOR OPERATING GENTRIFUGAL MACHINES.

APPLICATION FILED AUG.19, 1903.

63 I 2 SHEETS-SHEET 2.

Invenzgr: William/LL OZz'er UNITED STATES Patented February '7, 1905.

WILLIAM L. DOLIER, OF PHILADELPHIA, PENNSYLVANIA.

MEANS FOR OPERATING CENTRIFUGAL MACHINES- SPECIFICATION forming part ofLetters Patent No. 782,206, dated February 7, 1905. Original applicationfiled November 9, 1901, Serial No. 81,719. Divided and this applicationfiled August 19, 1903. Serial No. 169,980.

To (LZZ whom it may concern.-

Beit known that I, WVILLIAM L. DOLIER, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements in Meansfor Operating Centrifugal Machines,of which the following is aspecification.

The object of my invention is to drive a centrifugal machine by anelectric motor mounted in direct connection with the shaft of thecentrifugal machine, as fully described hereinafter.

My invention consists of mechanism whereby a centrifugal machine may bedriven by an electric motor, suclf mechanism containing means wherebythe centrifugal machine and motor may deflect from a truly verticalposition while in operation, the fixed and movable elements of the motorbeing maintained in relatively unvarying position with respect to eachother during such deflection and at all other times.

My invention consists in a centrifugal machine, with an electric motordirectly connected thereto, the motor and centrifugal being suspendedand free to deflect, the point of suspension being above both theelectric motor and centrifugal machine.

My invention consists also of automatic magnetic means for controllingbraking mechanism to stop the motor and centrifugal, there beingcombined with said braking mechanism means for lubricating the bearingsof the centrifugal and motor.

Reference is to be had to the accompanying drawings, in which Figure 1is a side view of the centrifugal machine and motor, illustrating myinvention. Fig. 2 is a vertical sectional view through the'motor andhanger, the motorarmature being shown in elevation. Fig. 3 is a planview, partly in section, taken on the line 3 3, Fig. 1. Fig. 4 isaplanview, partly in section, taken on the line 4 4, Fig. 1.

In said drawings, A represents the ordinary casing or housing of acentrifugal machine, the basket being inclosed within said housing A andsecured to the hollow shaft or quill D.

At C is showna hanger or suspension means fixed to some suitablestationary body. C, said hanger or suspension means, is a casting havingextended through it in a vertical direction an opening. At its lower endthis opening assumes an approximately spherical shape, and in it islocated the bushing 0, in which bears the ball or spherical member 7),rigidly secured to the fixed shaft B. The ball 6 is capable of movementin the bushing a, but is prevented from rotation, and therefore preventsthe shaft B from rotating. By this arrangement the'shaft B is permittedto defiect from a truly vertical position, and in consequence everythingcarried by it is likewise caused or permitted to deflect from a trulyvertical position. To resist any such deflection, there is provided aresilient body C, such as rubber, which embraces the upper end of theshaft B and is confined between said shaft and the inner walls of thehanger member (J. The body C is confined also between the collar 5 andthe washer b the latter being held in position by the nut or bolt 7),which in virtue of screw-threads in the upper end of shaft B may forcethe washer downwardly, thereby compressing the body 0 to any desiredextent, thus increasing the resistance offered to the deflection of theshaft B. The hanger C, in combination with the ball member 7),constitutes, in fact, a suspension means for the centrifugal machine andthe electric motor directly connected therewith.

The fixed shaft B extends downwardly and is embraced for the greaterportion of its length by the hollow shaft or quill D. To this hollowshaft D are secured the centrifugal basket and the armature or rotatingmember of the electric motor, as shown at E. The armature or rotatingmember of the motor is secured to the hollow shaft D in any of thewell-known manners for connecting an armature to a shaft, a very commonmethod being the employment of a spider which supports thearmature-core, which spider is keyed to the shaft.

It is of great importance that the fixed and movable elements of theelectric motor remain always in the same relative position with respectto each other while running and during the deflection of the shaft B forreasons well understood in electrical arts. To this end I have providedmeans whereby the fixed and movable elements of the electric motor mayboth swing with the shaft Band during such swinging or deflection remainalways in the same relative position with respect to each other. Thearmature E or rotating member of the motor is secured to the hollowshaft D.

E is the commutator, upon which bear the brushes e e in the manner andfor the purpose well understood in the electrical art.

The motor herein shown is of the directcurrent multipolar type, it beingunderstood, however, that any other type of electric motor may obviouslybe substituted therefor. The field or stationary element of the electricmotor comprises the field-ring F, carrying in this instance six poles feach carrying a field-winding f. The field-ring F is secured by bolts 71to the bracket member G, having in this case a hub member g, keyed tothe shaft B, and the four downwardly-extending arms When current ispassed through the motor, the armature E rotates in a well-known mannerand drives the quill or hollow shaft D, which in turn drives thecentrifugal basket. Vhen the basket is rotating at a speed sufficientlyhigh to cause a separation between the different materials containedtherein, such basket is likely to deflect, due to unsymmetrical loadingand other causes, thus causing the hollow shaft D to deflect from itstruly vertical position. hen such deflection occurs, the fixed shaft B,being closely embraced by the hollow shaft D, also deflects, and boththe motor and centrifugal basket swing about the ball member b as acenter. However, when the shaft B deflects the field or stationarymember of the motor is also caused to deflect through the agency of theframe or bracket G, and in consequence the fixed and stationary elementsof theelectric motor do not change their position with respect to eachother.

Mounted on the upper end of the hollow shaft D and intermediate thearmature E and the hub r is the flanged brake-wheel .1, engaged by thebrake-strap J, which is attached at one end to the arm j of thebrake-lever J. The other end of said brake-strap is attached to the arm.of said brake-lever J. This brake-lever J is pivoted to adownwardlyextending member attached to one of the arms g of the frame G.The arm j is connected by the rod to the core it" of the solenoid K,mounted on a bracket K, secured to the frame G. Also secured to the armj of the brakelever J is a rope or chain Z, which passes around or overa pulley Z on a bracket L, secured to the frame G, and on the end of therope or chain Z is fastened a suitable weight L. The weight L tends tocause an engagement between the brake-band J and the brake-wheel I. K isin opposition to that of the weight L. The solenoid K being connected inseries with the motor as soon as current passes through the motor thecore L is drawn into the solenoid K, thus lifting the weight L andreleasing the brake and permitting the motor to drive the centrifugalbasket freely. When the current through the motor is interrupted, thesolenoid K is no longer able to hold the core L" in opposition to theweight L, and in consequence the brake is auton'iaticall y set and themotor and centrifugal basket brought to rest.

Forming a continuation of the brake-wheel l is an oil-reservoir 11,embracing the fixed shaft B and having an opening in its upper surfaceslightly larger than said shaft B. Through this opening is fedlubricating material through the funnel r and the tube extendingtherefrom, as shown in Figs. 1 and 2. The lubricating material withinthe reservoir '6' is gradually fed downwardly between the hollow shaft Dand the fixed shaft B, insuring satisfactory lubrication of allbearingpoints.

This application shows the same mechanism as my copending application,Serial No. 81,719, filed November 9, 1901, of which application this isa division.

\Vhat I claim is 1. In a driving mechanism for centrifugal machines, afixed shaft, a ball-shaped member rigidly secured thereto, asocket-bearing for said ball-shaped member, a hollow shaft embracingsaid fixed shaft', a centrifugal basket secured to said hollow shaft,the revolving element of a motorsecured to said hollow shaft, and meansrigidly secured to said ballshaped member for supporting the fixedelement of said motor.

2. In a driving mechanism for centrifugal machines, a hanger,a memberhaving a socketbearing in said hanger, a fixed shaft secured to saidmember, a hollow shaft embracing said fixed shaft, a centrifugalbasketsecured to said hollow shaft, the rotatable element of a motorsecured to said hollow shaft, a bracket for sup portingthe fixed elementof said motor securedto said fixed shaft, and resilient means interposedbetween said fixed shaft and said hanger.

3. In a driving mechanism for centrifugal machines, a member having asocket-bearing in said hanger, and capable of deflection therein, asuspender secured to said member, a centrifugal basket supported by saidsuspender, the revolving element of a motor directly connected to saidbasket, a support for the fixed element of said motor deflectable withsaid member, and resilient means opposing the deflection of said basketand motor.

a. In a driving mechanism for centrifugal machines, a fixed shaft, arevolving shaft supported thereby, a centrifugal basket se- The actionof the solenoid cured to said revolving shaft, a fixed motor elementsupported by said fixed shaft, the rotatable element of said motorconnected to said revolving shaft, means permitting the deflection ofsaid centrifugal basket, and resilient means opposing said deflection.

5. In a driving mechanism for centrifugal machines, a hanger, a memberhaving a bearing in said hanger, a suspendersecured to said member, acentrifugal basket supported by said suspender, the revolving element ofa motor directly connected to said basket, the

fixed element of said motor secured to said suspender, and resilientmeans opposing the deflection of said basket.

6. In a driving mechanism for centrifugal machines, a hanger, a fixedshaft defiectable therein, a revolving shaft supported by said fixedshaft, a centrifugal basket and rotatable element of a motor secured tosaid revolving shaft, the fixed element of said motor supported by anddeflectable with said fixed shaft, and resilient means opposing thedeflection of said fixed shaft.

7. In a driving mechanism for centrifugal machines, a centrifugalbasket, the rotatable element of an electric motor, a shaft directlyconnecting said motor element and basket, means permitting thedeflection of said shaft, means for supporting the fixed element of saidmotor in unvarying position with respect to the rotatable element, andresilient means opposing the deflection of said shaft.

8. In a driving mechanism for centrifugal machines, a hanger, a socketin said hanger, a spherically-shaped member having a bearing in saidsocket and deflectable therein, a fixed shaft secured to saidspherically-shaped member, a hollow shaft embracing said fixed shaft, acentrifugal basket secured to said hollow shaft, and the rotatableelement of a motor secured to said hollow shaft.

9. In a driving mechanism for centrifugal machines, a hanger, a socketin said hanger, a spherically-shaped member bearing in said socket anddeflectable therein, a verticallyextending fixed member secured to saidspherically-shaped member,a rotatable shaft having a bearing on saidvertically-extending fixed member, a centrifugal basket secured to saidrotatable shaft, and the rotatable element of a motor secured to saidrotatable shaft.

10. In a driving mechanism for centrifugal machines, the combinationwith a rotatable basket-shaft, and a supporting member thereforstationary as to rotary motion, but having ball-and-socket supportarranged to permit deflection of said supporting member and of saidbasket-shaft, of a motor for driving said shaft, located below saidball-and-socket support, and comprising concentrically-arranged members,one carried by said shaft, and the other by said supporting member, andresilient means opposing the deflection of said supporting member.

11. In a driving mechanism for centrifugal machines, the combinationwith a rotatable basket-shaft, and a supporting member stationary as torotary motion, but having balland-socket support to permit deflection ofsaid supporting member and of said basketshaft, of a motor for drivingsaid shaft, located below said ball-and-socket support, and comprising arotary member and a stationary member, said stationary member beingcarried by said deflecting supporting member, and resilient meansopposing the deflection of said supporting member.

12. In a driving mechanism for centrifugal machines, the combinationwith a socket-piece for supporting the machine, a supporting memberhaving a ball member engaging in. said socket, said ball and socketarranged to permit deflection of said supporting member, and a rotatablebasket-shaft supported by said supporting member, of a motor for drivingsaid shaft comprising a rotating member carried by the basket-shaft, astationary member carried by said supporting member, and resilient meansopposing the deflection of said supporting member.

13. In a driving mechanism for centrifugal machines, the combinationwith a deflecting non-rotating supporting member having balland-socketsupporting means, and a basketshaft rotatably mounted and supported bysaid supporting member, of a motor for driving said basket-shaft,located below said ball-andsocket supporting means, and comprising arotating member carried by said basket-shaft, a stationary membercarried by said supporting member, and resilient means opposing thedeflection of said supporting member.

WM. L. DOLIER.

IVitnesses:

JOHN 'IliIEL, JNo. P. GRoAsDALn.

